//// This source code is dual-licensed under the Apache License, version
//// 2.0, and the Mozilla Public License, version 1.1.
////
//// The APL v2.0:
////
////---------------------------------------------------------------------------
////   Copyright (C) 2007-2012 VMware, Inc.
////
////   Licensed under the Apache License, Version 2.0 (the "License");
////   you may not use this file except in compliance with the License.
////   You may obtain a copy of the License at
////
////       http://www.apache.org/licenses/LICENSE-2.0
////
////   Unless required by applicable law or agreed to in writing, software
////   distributed under the License is distributed on an "AS IS" BASIS,
////   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
////   See the License for the specific language governing permissions and
////   limitations under the License.
////---------------------------------------------------------------------------
////
//// The MPL v1.1:
////
////---------------------------------------------------------------------------
////  The contents of this file are subject to the Mozilla Public License
////  Version 1.1 (the "License"); you may not use this file except in
////  compliance with the License. You may obtain a copy of the License
////  at http://www.mozilla.org/MPL/
////
////  Software distributed under the License is distributed on an "AS IS"
////  basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
////  the License for the specific language governing rights and
////  limitations under the License.
////
////  The Original Code is RabbitMQ.
////
////  The Initial Developer of the Original Code is VMware, Inc.
////  Copyright (c) 2007-2012 VMware, Inc.  All rights reserved.
////---------------------------------------------------------------------------

//using System;
//using System.Collections;
//using System.IO;
////using System.Net.Security;
////using System.Security.Authentication;
////using System.Security.Cryptography.X509Certificates;
//using RabbitMQ.Client.Impl;

//namespace RabbitMQ.Client
//{

//    ///<summary>Represents an SslHelper which does the actual heavy lifting
//    ///to set up an SSL connection, using the config options in an SslOption
//    ///to make things cleaner</summary>
//    public class SslHelper
//    {

//        private SslOption m_sslOption;

//        private X509Certificate CertificateSelectionCallback(object sender,
//                                                             string targetHost,
//                                                             X509CertificateCollection localCertificates,
//                                                             X509Certificate remoteCertificate,
//                                                             string[] acceptableIssuers)
//        {
//            if (acceptableIssuers != null && acceptableIssuers.Length > 0 &&
//                localCertificates != null && localCertificates.Count > 0)
//                {
//                    foreach (X509Certificate certificate in localCertificates)
//                        {
//                            if (Array.IndexOf(acceptableIssuers, certificate.Issuer) != -1)
//                                return certificate;
//                        }
//                }
//            if (localCertificates != null && localCertificates.Count > 0)
//                return localCertificates[0];

//            return null;
//        }

//        private bool CertificateValidationCallback(object sender,
//                                                   X509Certificate certificate,
//                                                   X509Chain chain,
//                                                   SslPolicyErrors sslPolicyErrors)
//        {
//            return (sslPolicyErrors & ~m_sslOption.AcceptablePolicyErrors) == SslPolicyErrors.None;
//        }

//        ///<summary>Upgrade a Tcp stream to an Ssl stream using the SSL options
//        ///provided</summary>
//        public static Stream TcpUpgrade(Stream tcpStream, SslOption sslOption)
//        {
//            SslHelper helper = new SslHelper(sslOption);
//            SslStream sslStream = new SslStream(tcpStream, false,
//                                                new RemoteCertificateValidationCallback(helper.CertificateValidationCallback),
//                                                new LocalCertificateSelectionCallback(helper.CertificateSelectionCallback));
            
//            sslStream.AuthenticateAsClient(sslOption.ServerName,
//                                           sslOption.Certs,
//                                           sslOption.Version,
//                                           false);

//            return sslStream;
//        }

//        private SslHelper(SslOption sslOption)
//        {
//            m_sslOption = sslOption;
//        }

//    }
//}
